Refrigerating apparatus



Oct. 5 ,1926. 1,602,148

c. DELAYGUE REFRIGERATING APPARATUS Original FiledjMarch 25, 1924 Patented Oct. 5, l926.'

CHARLES DELAYGUE, OF PARIS, FRANCE.

REFRIGERATIN G APPARATUS.

Original application filed March 25, 1924, Serial No. 701,756, and in France November 24, 1923. Divided and this application filed September 22, 1925.

This invention relates to refrigerating apparatus of the reversing-absorption type intended for the. production of cold for domestic use. larly concerns the type of domestic refrigerating apparatus described in the specifica- -tion of my co-pending application No.

701,756 filed March 25, 1924, and of which this case is a division.

In the specification of the application above referred to there is described apparatus comprising a generator-absorber, a condenser-evaporator, an inverted V-shaped gas return conduit extending from the top of the condenser to the bottom of the generatorabsorber and a gas outlet pipe extending vertically from the upper part of the generator-absorber to the said return conduit and opening thereinto at a point in advance of the condenser evaporator; and the invention of the aforementioned specification is characterized by the application to such apparatus of bafiles for separating out and returning to the generator-absorber any aqueous vapours which may accompany the ammonia gas passing over said bafiies being positioned in the gas outlet pipe between the generator-absorber and the return conduit.

The domestic refrigerating apparatus of the present invention comprises a generatorabsorber, a condenser-evaporator, a gas conduit which extendsvertically from the top of said generator-absorber, then bends downwards, then forms a rectifying coil and finally returns to the generator-absorber passing to the bottom thereof, a branch extension between the end of said coil and the condenser-evaporator, and a siphon by-pass so arranged that water particles separated out in said coil are returned directly to the generator-absorber by way of said by-pass.

In order that the present invention may be fully understood and readily carried into effect, an exam le thereof will now be described with re erence to and illustrated in the accompanying drawing, in which the single figure shown is a side elevation of the apparatus. a

The apparatus shown in the drawing comprises a generator-absorber A, a condenserevaporator G, agas outlet pipe T and a gas return conduit R, C which extends from the upper part of the condenser G to the bottom of the generator A.

The invention more particu-' Serial No. 57,982.

According to the present invention, a coil B is provided in the gas outlet pipe and a siphon by-pass D is arranged in order to permit condensed vapour to pass directly into the return pipe R and then back into the generator A.

The liquid which contains the dissolved gas is contained in the generator A, and under the action of heat the gas is delivered through a system of check valves S (either simple or multiple, with flat valves or balls) placed in the boiler and thence through the outlet pipe T which as shown rises ver tically at first and then inclines slightly below the horizontal and forms the coil B. The outer end of the coil B o ens into the return pipe R which is comp eted by the pipe C which leads straight to the condenserevaporator G. As will be seen in the drawing, the ipe R passes at R down to the bottom 0 the generator. The whole height of the liquid therefore opposes the return or the escape of the gas that way when heat is applied. On the contrary the pipe T remains near the surface of the liquid at T. The bend or elbow T is designed to avoid any chance of the liquid running into the pipe T when the apparatus is worked wrongly when it would be made to oscillate, and also any projection of the solvent liquid into the pipe T in case of tumultuous ebullition. The hot gas which escapes through the pipe T always carries away with it small particles of the solvent liquid. These small drops separate out in the descending portion of the tube T and collect at the bottom of the coil B. This liquid will be diverted into the pipe R by the fine siphon D, and will trickle into .this pipe and return thence to the generator. The pipe C opens into the pipe R with an internal lip or guard which prevents any of the liquids from assing into the condenser. The gas will t erefore arrive in the condenser dry.

The condenser may be of any desired form, for example hollow cylindrical interior for the production of blocks of ice and of large capacity in height for the purpose of ensuring efiicient and rapid evaporation, being narrow at the bottom for prolonging the cooling action until the whole of the liquefied gas is exhausted. I

When evaporation is taking place in the condenser, the gas issuing from the vessel G will be afforded an easy path through the pipe C and the pipe R and will be reabsorbed totally by bubbling at B into th solvent liquid.

The dimensions of the apparatus may be as desired but it will be understood that the capacity of the apparatus is such as is suitable for domestic use. 7

I am aware that in other types of refrigerating apparatus of a complex nature it is old to form the gas outlet pipe to comprise a coil; also that it is old to form in the gas outlet pipe a water trap with a by-pass back to the generator; and I wish it to be understood that I do not claim herein such prior apparatus. The present invention concerns solely domestic apparatus of the type described and claimed in my specification No. 701,756 and consists in the novel combination of parts set forth in the appended statement of claim.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is'to be performed, I declare that what I claim is Domestic refrigerating apparatus comprising a generator-absorber, a condenserevaporator, a gas conduit extending upwardly from the top of the generator absorber, then laterally and back to the generator absorber, said conduit terminatin adjacent the bottom of the same and being ormed intermediate its length with a coil, a branch extension between the end of said coil and the condenser-evaporator, and a siphon bypass extending from the lower portion of the convolution of said coil to a point between the branch extension and the generator absorber.

' In testimony whereof I atfix my signature.

CHARLES DELAYGUE. 

